Custom Insert for Dysplastic Glenoid in Reverse Total Shoulder Arthroplasty

Arthritis is the leading cause of disability in the US workforce, leading to debilitating limitations with mobility and function in an otherwise healthy adult. In 2005, 21.6% of US adults (46.4 million) were formally diagnosed with arthritis, and by 2030 is projected to reach 40% (~67 million) [1-3]. A high correlation exists between age and the presence of rotator cuff disease and glenohumeral arthritis. The average age of individuals with unilateral cuff tears is 58.7, 67.8 years for those with bilateral, and 50% likelihood of a bilateral tear after age 60. It is estimated 13% of patients in their fifties suffer from a cuff tears and 54% of patients 60 years or older, with more than half of asymptomatic rotator cuff tears progressing in size and becoming symptomatic within 3 years [4- 6]. After the knee, the shoulder is the second most common site of chronic joint pain (63.4%vs. 30.6%)